This is pretty wild: the Kogeto Dot ($80) is a 360-degree lens that snaps onto the back of an iPhone 4, shoots 360-degrees worth of video; then a player in the cloud (if you upload the clip) or on your iPhone 4 in the form of Kogeto’s free Looker app (if you keep the clip on your phone) allows you to play the app and change to any viewpoint in a 360-degree circle during playback.